Contents

………..is the part that is about 45 percent by volume of blood.
a) Plasma                     
b) Blood cells
c) Blood platelets         
d) all of these

b

RBCs are known as……….
a) Hemoglobin             
b) Erythrocytes
c) Leucocytes              
d) None of these

b

One cubic millimeter of blood contains about ……….red blood cells in man.
a) five million              
b) six million
c) seven million                       
d) eight million

a

………..contain a special type of protein called hemoglobin.
a) Plasma                     
b) Red blood cells
c) White blood cells     
d) all of these

b

The average life RBCs is ………days.
a) 10                            
b) 50
c) 90                            
d) 120

d

WBCs are known as……….
a) Hemoglobin             
b) Erythrocytes
c) Leucocytes              
d) None of these

c